| Welsh baby names begining from R |
| Rathtyen |
 | Legendary daughter of Clememyl. |
| Reece |
 | Ardent; fiery. |
| Rees |
| Ardent; fiery. |
| Reese |
| Ardent; fiery. |
| Ren |
| Ruler. |
| Renfrew |
| Dwells near the still river. |
| Rhan |
| Fate. |
| Rhawn |
| Coarse long hair. |
| Rhedyn |
| Fern. |
| Rheged |
| Legendary father of Gwres. |
| Rhett |
| Form of Rhys: ardent; fiery. Rhett Butler was hero of Margaret Mitchell's Gone With the Wind. |
| Rhiain |
| Maiden. |
| Rhiannon |
| Nymph; goddess; pure maiden. |
| Rhianwen |
| Comely maiden. |
| Rhianwyn |
| Comely maiden. |
| Rhinffrew |
| Dwells near the still river. |
| Rhioganedd |
| Legendary a prince of Ireland. |
| Rhisiart |
| Welsh form of Richard 'strong ruler'. |
| Rhobert |
| Welsh form of Robert 'brilliant renown'. |
| Rhona |
| Variant of Rhonwen: Fair lance; fair, slender. Welsh form of Rowena: white-haired. |
| Rhonwen |
| Fair lance; fair, slender. Welsh form of Rowena: white-haired. |
| Rhosyn |
| Rose. |
| Rhun |
| Legendary son of Beli. |
| Rhuvawn |
| Legendary son of Deorthach. |
| Rhyawdd |
| Legendary son of Morgant. |
| Rhychdir |
| From the plow land. |
| Rhyd |
| From the ford. |
| Rhys |
| Ardour; rashness. |
| Rice |
| Ardent. |
| Romney |
| Dwells near the curving river. |
| Rowena |
| Variant of Rhonwen: Fair lance; fair, slender. Welsh form of Rowena: white-haired. |
| Rumenea |
| Dwells near the curving river. |
| Ryn |
| Ruler. |
| |
